HOUSTON, Sept 3 (Reuters) - Colonial Pipeline Co, the biggest U.S. fuels system operator, on Sunday said it would address storm-related gasoline shortages by seeking federal approval to move nonsummer grade gasoline from Texas to the Northeast.

The company’s pipelines connect refineries along the U.S. Gulf Coast to markets in the Northeast, transporting more than 3 million barrels a day of gasoline, diesel and jet fuel.

It is petitioning the Federal Energy Regulatory Commission to allow it move so-called transitionary gasoline, a grade between summer and winter blend. Earlier, refiner Valero Energy had sought help from Texas Governor Greg Abbott, saying Colonial requirements were backing up its ability to ship nonsummer grade gasoline to customers.